I think I fried a Panda board. I was actually just testing some analog input code. I don’t think I overloaded it, but I guess it’s possible I put a pin into the wrong slot in my breadboard. (But I highly doubt it–the 12v source was far away from the input pin.)
I am using the onboard 5v regulator to power a MAX7456 OSD chip but the draw on that device is pretty small and I have been doing that for days so I doubt that’s a factor. And if it was, I supposed I’d fry the USB port or power regulator, not the Usbzi chip itself.
In any case, I took everything off the Panda, tried connecting with the bootloader button pressed, but no dice. When I plug USB in, the LED lights dimly and the Usbzi gets hot quickly so I disconnect it. The computer doesn’t make the plug-and-play sound so no hardware is detected. I plug another panda into the same USB port and cable and it work OK.
So other than breaking out the SMT soldering supplies, is there anything I can do to salvage it?